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发明名称
INFORMATION RECORDING
摘要
申请公布号
US3427629(A)
申请公布日期
1969.02.11
申请号
USD3427629
申请日期
1967.06.22
申请人
BELL & HOWELL CO.
发明人
JOHN H. JACOBS;CHARLES F. ROBINSON
分类号
G03H1/26;G11C13/04;(IPC1-7):G01D9/42
主分类号
G03H1/26
代理机构
代理人
主权项
地址
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